SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 3-a Lesson: S3-L3

Explanation: The best way to understand multiplications is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Step: 1a

Find the product of 35 & 21.

Arrange the numbers 35 and 21 in columns according to their places.
Multiply 1 by each digit of 35:
Start by multiplying 1 by 5, which gives us 5 (1 x 5 = 5). Write 5 in the one’s column.
Then, multiply 1 by 3 (1 x 3 = 3) and write 3 in the tens place.
Thus, our final answer is 35.

$1a$

Explanation: In this step, arrange 35 and 21 in columns according to their places. Multiply 1 by each digit of 35, we get 35 as the answer.

Step: 1b

Now, we will place a zero (0) under the first partial product, that is, before writing the second partial product in the next line

$1b$

Explanation: In this step, before writing the second partial product in the next line, we will place a zero(0) under the first partial product.

Step: 1c

To find the product of 2 multiplied by each digit of 35, follow these steps.
Multiplying 2 by 5 gives us 10 (2 x 5 = 10). Write 0 in the tens column and carry over 1 to the tens place.
Next, multiply 2 by 3, 6 + carry-over(1) = 7. Write 7 in the hundreds column.
Our final answer is 700.

$1c$

Explanation: In this step, To find the product of 2 multiplied by each digit of 35, follow these steps: Multiply 2 by 5 to get 10. Write down 0 and carry over 1 to the tens place. Multiply 2 by 3 to get 6. Add the carry-over (1) to 6 to get 7. Write 7 in the hundreds column. The final answer is 700.

Step: 1d

Add both partial products to get the final product
This means 35 + 700 = 735.
Therefore, the final product is 735.

$1d$

Explanation: Add both results to get a final answer. Now, we need to add 35 + 700 to get 735.